5610561669 has 12 divisors (see below), whose sum is σ = 8105771596. Its totient is φ = 3739623552.

The previous prime is 5610561643. The next prime is 5610561673. The reversal of 5610561669 is 9661650165.

It can be written as a sum of positive squares in 2 ways, for example, as 4062532644 + 1548029025 = 63738^2 + 39345^2 .

It is not a de Polignac number, because 5610561669 - 2¹¹ = 5610559621 is a prime.

It is a super-2 number, since 2×5610561669² = 62956804483304131122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5610561679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13204 + ... + 106749.

Almost surely, 2^5610561669 is an apocalyptic number.

It is an amenable number.

5610561669 is a deficient number, since it is larger than the sum of its proper divisors (2495209927).

5610561669 is a wasteful number, since it uses less digits than its factorization.

5610561669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125156 (or 125153 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 5610561669 is about 74903.6826130732. The cubic root of 5610561669 is about 1776.9237009642.

The spelling of 5610561669 in words is "five billion, six hundred ten million, five hundred sixty-one thousand, six hundred sixty-nine".